Improvement in plows



H. MARSHALL.

, Plow.

Patented June 30, |868.

M l www HAMMOND MARSHALL, OF ATLANTA, ASSIGNOR TO HIMSELF AND T. W.

` CHANDLER, OF FULTON COUNTY, GEORGIA.

Letters Patent No. 79,486, dated June 30, 1868.

IMPROVEMENT IN PLows.

TO AI-.L WHOM IT MAY GONCERN:

. Be it known that I, HAMMOND MARSHALL, of Atlanta, in the county of Fulton, and in the State of Georgia, have invented certain new and useful Improvements in Irlows; and do hereby declare that the following is a full, clear, andexact description thereof, reference being had to the accompanying drawings', and to the letters `purpose by merely changing the side-pieces.

of reference'marked thereon.

The. nature of my invention consists in the manner of fastening the .wings and point of a plow to the main body, so that the same can be easily exchanged for others,` if desired, thereby making them convertible; and also inprov'iding different kinds of wings and mould-boards, sofas to make the same main body answer for any In order to enable others skilled iu the art to make and use my invention, I will new proceed to describe its construction and operation, referring to the annexed drawings, which forni a part of this specification, and in whichi Figure 1 is a. side view ofthe plow- Figures 2 and 5, view of bottom side of the wings.

'Figure 3, view of bottom side of the shovel. Y

Figure 4, ,plan view, showing the manner of fastening the dilierent parts; and

Figure 6, front view of plow, with one wing inserted and point withdrawn.

A represents the main body of my plow, which Vis made of cast iron, and provided on each side with a slotted projection, B, the ends of which projections are flanged on their upper side, as shown in fig. 6, the flanges being marked a a. y

The point C is provided with a pin, b, which is inserted into the hole c on the shank A, and extends through thebottom thereof, where it is fastened by meansof a pin passed through a hole in the end of the same, thus holding the point tightly and firmly hp to the main body or shank.

The upper side of' the-shank, as well as that of the point, is bevelled upward from the sides, forming a continuous cutting-edge, d, along the top ofthe plow, which-edge is sharp enough to out off roots like a knife. A'

The bottom of the plow, freni the heel e to the forward point f,-is curved, pointing downward, so that the point will go into the ground.

The wings or blades are all provided on their under or bottom side withA a lug or staple, t', and a groove, 7L, running on each side,` from this staple, which grooves are for the purpose of receiving the flanges a a, on the projections B B, when the lugs or staples on these wings are inserted in the slots on said. projections, a small flange extending on each side of the shank, coveringAthe joint thus formed between the wings and said shank. The blades 'are secured by means of a pin passing through a hole in that part of the lu-g z' which extends beneath the slotted projection B.

The wings, shovels, and mould-boards, as shown in the drawings, may be made of any size or shape desired, but sorarrunged that they all tit on to the same shank, so that they may be easily exchanged, one for another, by the means and in the manner described. And they, as well as the point C, may be made of cast steel, or

vany other suitable material.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The shank A, constructed as described, with a sharp cutting-edge, d d, at the top, curved at the bottom, `and provided with slotted projections B B, substantially as and for the purposes herein set forth.

2. Theslotted and ilangedprejectious B on the shank A, in combination with 'the lugs z'z'and grooves h h on the wings, for the purpose of fastening the same together, substantially as and for the-purposes herein set forth.

3. The pin Zz, on the point C,.in combination' with the holo c, on the shank A, for the purpose of fastening the sameV togethersubstantially as and for the purposes herein set forth.

In testimony that I claim the foregoing, I have hereunto set my hand, this fifteenth day of May,v186 8.

HAMMOND MARSHALL.

, Witnesses:

WM.` BATT, lA. A. GOULDING. 

